11531231014 has 16 divisors (see below), whose sum is σ = 18147517056. Its totient is φ = 5488156800.

The previous prime is 11531231011. The next prime is 11531231051. The reversal of 11531231014 is 41013213511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531231011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520707 + ... + 1528270.

It is an arithmetic number, because the mean of its divisors is an integer number (1134219816).

Almost surely, 2^11531231014 is an apocalyptic number.

11531231014 is a deficient number, since it is larger than the sum of its proper divisors (6616286042).

11531231014 is a wasteful number, since it uses less digits than its factorization.

11531231014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049071.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 11531231014 its reverse (41013213511), we get a palindrome (52544444525).

The spelling of 11531231014 in words is "eleven billion, five hundred thirty-one million, two hundred thirty-one thousand, fourteen".